len gardener wrote in message . ..

oh and
if it is scale look for ants you will need to move them on as well if
you want treatment to be permanent.

No, there are no presence of ants, but there are some other pests such
as grasshoppers and a green caterpilla. They are doing more damage to
the palms though, eating away at the frond leaves.

Is your white oil also an effective remedy for these, or should I just
pick them off / spray them with some insecticide?

Thanks.